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Commit aa7a574d authored by Al Viro's avatar Al Viro
Browse files

dup_mnt_ns(): get rid of pointless grabbing of vfsmount_lock 



mnt_list is protected by namespace_sem, not vfsmount_lock

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 44bb4385

fs/namespace.c

+0 −2
Original line number Diff line number Diff line
@@ -2444,9 +2444,7 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns, 
		return ERR_CAST(new);

	}

	new_ns->root = new;

	br_write_lock(&vfsmount_lock);

	list_add_tail(&new_ns->list, &new->mnt_list);

	br_write_unlock(&vfsmount_lock);



	/*

	 * Second pass: switch the tsk->fs->* elements and mark new vfsmounts